Re: [PEDA] DRC errors
Aaaah, I see. I started deleting the bits of copper, but thought,
surely, there must be a better way than this, so hence my question.
Since the Autoroute/Unroute all sequence leaves copper everywhere, I
guess I'll do:
1/ clean up copper
2/ Save design to a backup file
3/ Autoroute the design
4/ If no good, restore clean saved copy, adjust components, GOTO 3.
I'm not a power user either, and only occasionally use Protel. Still
learning!
Rgds, PM
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: 18 July 2003 09:48
To: Protel EDA Forum
Subject: Re: [PEDA] DRC errors
I've been here too Peter. Protel can be a messy blighter, leaves little
bits of segments all over the place. I am not a power user so there
might
be better ways but I have found that I needed to remove every last trace
of
old copper before the DRC and autorouter would behave. I have used
various
strategies to pick out the unwanted bits. Basically it has been a manual
"search and destroy" mission for me.
Robert
Peter Moreton
<[EMAIL PROTECTED]To: "'Protel EDA
Forum'" <[EMAIL PROTECTED]>
>cc:
Subject: Re: [PEDA] DRC
errors
18-Jul-2003 09:22
AM
Please respond to
Protel EDA Forum
Thanks to Steve & Brian who replied to my question; I have checked the
points they raised, and still no luck.
However, I noticed today that when I start the Autorouter, there is
quite a bit of copper already on the PCB, from previous sessions. Maybe
I'm doing something completely wrong, but my process is:
1/ Place components as ideally as possible
2/ Autoroute. DRC reports clearance errors and short circuits
3/ Tools, "Unroute All" (but about 15 tracks remain)
4/ Adjust component placement
5/ Autoroute. DRC reports clearance errors and short circuits again
It looks as though the Autorouter is unable to work around all the
existing copper - is there something else to do to 'purge' the board of
copper, in addition to 'Unroute All'
Thanks, Peter Moreton
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Re: [PEDA] DRC errors
At 18/07/2003 10:22, Peter Moreton wrote: ... However, I noticed today that when I start the Autorouter, there is quite a bit of copper already on the PCB, from previous sessions. Peter, I've had a similar problem. What I did: selected one of the remaining bits of track, edited the properties globally to select the tracks and then hit Ctrl-del. This effectively cleared all tracks from the board. Make sure you disable all non-copper layers beforehand, or you'll probably lose your component and board outlines too... Hope this helps. Take carwe, Leo * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/[EMAIL PROTECTED] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Re: [PEDA] DRC errors
18/07/2003 09:22:27, Peter Moreton <[EMAIL PROTECTED]> wrote: >It looks as though the Autorouter is unable to work around all the >existing copper - is there something else to do to 'purge' the board of >copper, in addition to 'Unroute All' How about - Unselect all (xa) Double click a bit of copper, then using the 'global' button, apply selection to all the tracks on the same layer. (check that the right stuff's gone yellow, then...) Delete selection (et). Repeat on all layer you want to empty. Steve * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/[EMAIL PROTECTED] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Re: [PEDA] DRC errors
I've been here too Peter. Protel can be a messy blighter, leaves little
bits of segments all over the place. I am not a power user so there might
be better ways but I have found that I needed to remove every last trace of
old copper before the DRC and autorouter would behave. I have used various
strategies to pick out the unwanted bits. Basically it has been a manual
"search and destroy" mission for me.
Robert
Peter Moreton
<[EMAIL PROTECTED]To: "'Protel EDA Forum'" <[EMAIL
PROTECTED]>
>cc:
Subject: Re: [PEDA] DRC errors
18-Jul-2003 09:22
AM
Please respond to
Protel EDA Forum
Thanks to Steve & Brian who replied to my question; I have checked the
points they raised, and still no luck.
However, I noticed today that when I start the Autorouter, there is
quite a bit of copper already on the PCB, from previous sessions. Maybe
I'm doing something completely wrong, but my process is:
1/ Place components as ideally as possible
2/ Autoroute. DRC reports clearance errors and short circuits
3/ Tools, "Unroute All" (but about 15 tracks remain)
4/ Adjust component placement
5/ Autoroute. DRC reports clearance errors and short circuits again
It looks as though the Autorouter is unable to work around all the
existing copper - is there something else to do to 'purge' the board of
copper, in addition to 'Unroute All'
Thanks, Peter Moreton
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* To post a message: mailto:[EMAIL PROTECTED]
*
* To leave this list visit:
* http://www.techservinc.com/protelusers/leave.html
*
* Contact the list manager:
* mailto:[EMAIL PROTECTED]
*
* Forum Guidelines Rules:
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*
* Browse or Search previous postings:
* http://www.mail-archive.com/[EMAIL PROTECTED]
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Re: [PEDA] DRC errors
Thanks to Steve & Brian who replied to my question; I have checked the points they raised, and still no luck. However, I noticed today that when I start the Autorouter, there is quite a bit of copper already on the PCB, from previous sessions. Maybe I'm doing something completely wrong, but my process is: 1/ Place components as ideally as possible 2/ Autoroute. DRC reports clearance errors and short circuits 3/ Tools, "Unroute All" (but about 15 tracks remain) 4/ Adjust component placement 5/ Autoroute. DRC reports clearance errors and short circuits again It looks as though the Autorouter is unable to work around all the existing copper - is there something else to do to 'purge' the board of copper, in addition to 'Unroute All' Thanks, Peter Moreton * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/[EMAIL PROTECTED] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Re: [PEDA] DRC errors
17/07/2003 17:20:47, Peter Moreton <[EMAIL PROTECTED]> wrote: > >I'm updating a PCB after making some schematic changes, and the PCB DRC >checker is giving lots of violations of 'clearance constraints' and >'short circuit constraints' If you have units in PCB set to mm, not imperial, your rules will be imported as mm when you synchronise - so your sensible 8-thou gap becomes a rather surprising 8mm. Worth checking the design rules within PCB - see if they're improbably big. Steve * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/[EMAIL PROTECTED] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Re: [PEDA] DRC errors
Pete, I've had similar things happen when the Clearance Rule has been changed from "Different Nets Only" to "Any Net." I know that you said you hadn't changed any of the default rules but it's a quick and easy check. Hope this helps. brian -Original Message- From: Peter Moreton [mailto:[EMAIL PROTECTED] Sent: Thursday, July 17, 2003 11:21 AM To: 'Protel EDA Forum' Subject: [PEDA] DRC errors I'm updating a PCB after making some schematic changes, and the PCB DRC checker is giving lots of violations of 'clearance constraints' and 'short circuit constraints' - I haven't changed any of the default protel design rules, and no matter how much I space out the parts, I'm still getting these errors. Could someone give me a pointer as to where to start looking? (I'm using Protel 99SE SP6. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/[EMAIL PROTECTED] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
[PEDA] DRC errors
I'm updating a PCB after making some schematic changes, and the PCB DRC checker is giving lots of violations of 'clearance constraints' and 'short circuit constraints' - I haven't changed any of the default protel design rules, and no matter how much I space out the parts, I'm still getting these errors. Could someone give me a pointer as to where to start looking? (I'm using Protel 99SE SP6. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * To post a message: mailto:[EMAIL PROTECTED] * * To leave this list visit: * http://www.techservinc.com/protelusers/leave.html * * Contact the list manager: * mailto:[EMAIL PROTECTED] * * Forum Guidelines Rules: * http://www.techservinc.com/protelusers/forumrules.html * * Browse or Search previous postings: * http://www.mail-archive.com/[EMAIL PROTECTED] * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
